National Geographic : 1959 Jan
Future Atom Tanker Envelops Its Crew inaPoolofOil Plans being drawn for the U. S. Maritime Ad ministration by Electric Boat Division of Gen eral Dynamics Corpora tion envisage a 565 foot submersible ca pable of carrying 20,000 tons of oil beneath the Arctic ice. It is a sub marine within a sub marine. Liquid cargo (or sea water on the return voyage) surrounds the pressurized inner hull, which contains living and working quarters and machinery. Variable cargo tanks are filled with just enough liquid to give neutral buoyancy. Fill ing or blowing smaller sea-water tanks permits diving or surfacing.